<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" height="190">
    <!--40,180 190,60 10,60 160,180-->
    <polygon points="100,10 40,180 190,60 10,60 160,180"
             style="fill:red;stroke:blue;stroke-width:3;fill-rule:evenodd;" />
</svg>
</body>
</html>